Designed to meet the basic science information needs of students in grades three through nine as well as ESL students, this work has more than 2,100 short entries (generally two to four paragraphs) in a single alphabetical arrangement. There are entries for kinds of science, from Agriculture to Zoology, as well as for tools, concepts, discoveries, and people. Each entry has at least one labeled, large color illustration (photograph, drawing or diagram). Photographs present a diverse range of people.